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Thread: Plasti-guage question.

  1. 10-07-2009, 11:24 AM #1
    dorin48
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    Default Plasti-guage question.

    I know I could look this up but i felt like giving our experts a chance to show off.

    I understand what and why but not how.

    Whats the technique for using plasti-guage?

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  2. 10-07-2009, 12:00 PM #2
    RBS
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    place it between the crank and bearing, torque down, carefully remove and then measure... pretty simple
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  3. 10-07-2009, 12:03 PM #3
    dorin48
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    Makes sense. I knew it would be simple but just wasn't sure.
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  4. 10-07-2009, 12:31 PM #4
    RBS
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    Werd
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  5. 10-07-2009, 01:42 PM #5
    dallasb84
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    it will also come with a little chart thing that you compare the smash width for the clearance....... doesnt usually come with the plastiguage i dont believe but i used to have one before i lent it out....
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  6. 10-07-2009, 08:37 PM #6
    green91
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    Quote Originally Posted by dallasb84 View Post
    it will also come with a little chart thing that you compare the smash width for the clearance....... doesnt usually come with the plastiguage i dont believe but i used to have one before i lent it out....

    The plastigauge comes in the package thats used for the gauge, it always come with it.


    For most import motors you will need the GREEN plastiguage.
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  7. 10-11-2009, 07:50 AM #7
    JJSPEC Racing
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    Make sure you clean the oil off of both surfaces and dont let the crank rotate any. Both of these will affect the reading. And correct on the package having the chart on it. You probably want to use the green plastigage for crank and rod stuff.


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  8. 10-11-2009, 09:00 AM #8
    Cool Cat Racing
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    I won't use it anymore. Its too easy to get a false reading if anything moves or the cap rocks coming off. I use a ball micrometer and a dial caliper to verify clearances. Its more expensive to go that route so if you're only building one engine its probably not worth it but for me and as anal as I am about stuff like that it was worth it.
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  9. 10-11-2009, 11:11 AM #9
    B18c1Turboed
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    We have never plasti gauge a motor and they all have been fine. We use standard bearing and roll with it...

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  10. 10-11-2009, 05:16 PM #10
    JJSPEC Racing
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    Quote Originally Posted by Cool Cat Racing View Post
    I won't use it anymore. Its too easy to get a false reading if anything moves or the cap rocks coming off. I use a ball micrometer and a dial caliper to verify clearances. Its more expensive to go that route so if you're only building one engine its probably not worth it but for me and as anal as I am about stuff like that it was worth it.

    This is definately the best way. Just answering the op's questions about the Plastigage.


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  11. 10-12-2009, 05:43 PM #11
    Init2winit
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    Quote Originally Posted by B18c1Turboed View Post
    We have never plasti gauge a motor and they all have been fine. We use standard bearing and roll with it...
    LoL
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